One thing Trump got very wrong about his meeting with The Queen

After the 92-year-old monarch shook hands with the President and First Lady, Melania Trump, on the dias in the quadrangle, Trump and Her Majesty inspected the Coldstream Guards in their Guard of Honour - a ceremonial honour for world leaders and Heads of State.

Later, Trump was caught out saying he was the first US leader in 70 years to review The Queen's guards, however pictures tell a very different story.

Donald Trump has been caught out with a bit of 'fake news' after claiming he was the first person to review The Queen's guards in 70 years (PA/AAP)

"We met with the Queen, who is absolutely a terrific person, where she reviewed her Honour Guard for the first time in 70 years, they tell me," President Trump said, according to CNN.

"We walked in front of the Honour Guard and that was very inspiring to see and be with her.

"And I think the relationship, I can truly say is a good one. But she was very, very inspiring indeed."

The US President and First Lady enjoyed tea at Windsor Castle (PA/AAP)

However, many were quick to call out the President's comments as 'fake news'.

Not only has The Queen only been on the throne 66 years, not 70, but Her Majesty regularly reviews the household guards on a number of occasions.

Also, in 2011, then US President Barack Obama inspected The Queen's Guard of Honour during a visit at Buckingham Palace.

Many people took to Twitter after President Trump inspected the Coldstream Guards, for his apparent breach of Royal protocol, walking in front of the monarch, something even Prince Philip doesn't do.

President Obama was the most recent US leader to review The Queen's guards in a 2011 visit (PA/AAP)

The ceremonial honour is reserved for world leaders and heads of state (PA/AAP)